"chris" wrote:

Does anyone know if I can buy Natural gas in large bottles to run
household central heating & hob for a few months.


Yes & no... While it would be available in tanks large enought to supply your
home, LPG (also known as bottle gas) has a slightly different makeup than
natural gas. This means your appliances would need to be re-jetted to work
properly. Not a big deal and a bottle gas supplier would be able to do it with
no problem.